#include＜stdio.h＞ int main（) { char ch; ch=getchar（); switch（ch) { case ‘A’ : printf（“%c”,’A’); case ‘B’ : printf（“%c”,’B’); break; default: printf（“%s\n”,”other”); } } 若输入A时，程序运行结果为：

#include<stdio.h>

main()

{ char ch;

ch=getchar();

switch(ch)

{case ′H′:printf("Hello!\n");

case ′G′:printf("Good morning!\n");

default:printf("Bye_Bye!\n");

}

}

A．Hello!

B．Hello! Good Moring!

C．Hello! Good morning! Bye_Bye!

D．Hello! Bye_Bye!

#include<stdio.h>

main()

{ char ch;

ch=getchar();

switch(ch)

{case ′H′:printf("Hello!\n");

case ′G′:printf("Good morning!\n");

default:printf("Bye_Bye!\n");

}

}

A．Hello!

B．Hello! Good Moring!

C．Hello! Good morning! Bye_Bye!

D．Hello! Bye_Bye!

A、668977

B、668966

C、66778777

D、6688766

#include<stdio.h>

void main()

{ int cs;

while((cs=getchar())!=; '\n')

{switch(cs-'2')

{ case 0

case 1: putchar(cs+4);

case 2: putchar(cs+4);

break;

case 3: putchar(cs+3); default: putchar(cs+2); } } }

A．668977

B．668966

C．6677877

D．6688766

main（）

{char c;

int v0=1,v1=0,v2=0;

do{switch（c=getchar（））

{case ′a′:case ′A′:

case ′e′:case ′E′:

case ′i′:case ′I′:

case ′o′:case ′O′:

case ′u′:case ′U′:v1+=1;

default:v0+=1;v2+=1; }

}while（c!=′＼n′）;

printf（ "v0=%d,v1=%d,v2=%d＼n",v0,v1,v2）;}

A．v0=7,v1=4,v2=7

B．v0=8,v1=4,v2=8

C．v0=11,v1=4,v2=11

D．v0=13,v1=4,v2=12

#include <stdio.h>

main()

{char c;

int v0=1,v1=0,v2=0;

do{ switch(c=getchar())

{ case ′a′:case ′A′:

case ′e′:case ′E′:

case ′i′:case ′I′:

case ′o′:case ′O′:

case ′u′:case ′U′:v1+=1;

default:v0+=1;v2+=1; } }while(c!='\n');

printf("v0=%d,v1=%d,v2=%d\n",v0,v1,v2);}

A．v0=7,v1=4,v2=7

B．v0=8,v1=4,v2=8

C．v0=11,v1=4,v2=11

D．v0=13,v1=4,v2=12

A、668977

B、668966

C、66778777

D、6688766

A、88898787

B、668966

C、888988

D、66898787